The 3rd character refers to the root operation or the objective of the procedure.

Cardiovascular System

  • X2A - Assistance

    Taking over a portion of a physiological function by extracorporeal means

  • X27 - Dilation

  • X2C - Extirpation

    Taking or cutting out solid matter from a body part — The solid matter may be an abnormal byproduct of a biological function or a foreign body; it may be imbedded in a body part or in the lumen of a tubular body part. The solid matter may or may not have been previously broken into pieces

  • X2R - Replacement

    Putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part — The body part may have been taken out or replaced, or may be taken out, physically eradicated, or rendered nonfunctional during the Replacement procedure. A Removal procedure is coded for taking out the device used in a previous replacement procedure